Actually, not true. Some of them only work on camera, others work better in person. For example, the heads following you, that works best in person because it looks like they really are following you. The different sized shapes works well either way, as well as the checker board.
Some of them are simply angle illusions, which means if they were set up so you could only see them from very limited directions, they would work well in person, but if you went to another direction, they would fail. The dinosaur would be one of those, as would the tire thing.
I don't know about the tie-fighter looking thing, because I'm not sure what the illusion was supposed to be.
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@anonymous
Actually, not true. Some of them only work on camera, others work better in person. For example, the heads following you, that works best in person because it looks like they really are following you. The different sized shapes works well either way, as well as the checker board.
Some of them are simply angle illusions, which means if they were set up so you could only see them from very limited directions, they would work well in person, but if you went to another direction, they would fail. The dinosaur would be one of those, as would the tire thing.
I don't know about the tie-fighter looking thing, because I'm not sure what the illusion was supposed to be.